Merge pull request #35 from AtilaSaraiva/seisHeaderInfo

Adding DataFrames output to SeisHeaderInfo

Project.toml

@@ -4,6 +4,7 @@ authors = ["fercarozzi <[email protected]>"]
 version = "0.1.2"
 
 [deps]
+DataFrames = "a93c6f00-e57d-5684-b7b6-d8193f3e46c0"
 Distributed = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 DocumenterTools = "35a29f4d-8980-5a13-9543-d66fff28ecb8"
@@ -15,6 +16,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 [compat]
 Documenter = "0.27"
 DocumenterTools = "0.1"
+DataFrames = "1"
 julia = "1"
 
 [extras]

src/ReadWrite/SeisHeaderInfo.jl

@@ -1,67 +1,76 @@
 """
-	SeisHeaderInfo(filename;<keyword arguments>)
+    SeisHeaderInfo(filename;<keyword arguments>)
 
 Print Seis header information to screen. The input is the name of the data file
 
 # Arguments
 
-- `ntrace=100000` : Number of traces to analyze
+- `ntrace=nothing` : Number of traces to analyze
 
 *Credits: AS, 2015*
 
 """
-function SeisHeaderInfo(filename;ntrace=100000)
+function SeisHeaderInfo(filename::String;ntrace::Union{Integer,Nothing}=nothing)
 
-	key = fieldnames(Header)
-	nhead = length(key)
-	filename_headers = ParseHeaderName(filename)
-	stream = open(filename_headers)
-	NX = GetNumTraces(filename)
-	h = GrabHeader(stream,1)
-	println("Displaying information for ", filename," (",NX," traces):")
-	min_h = zeros(Float32,length(key))
-	max_h = zeros(Float32,length(key))
-	mean_h = zeros(Float32,length(key))
+    key = fieldnames(Header)
+    nhead = length(key)
+    filename_headers = ParseHeaderName(filename)
+    stream = open(filename_headers)
+    NX = GetNumTraces(filename)
+    newNTrace = isnothing(ntrace) ? NX : ntrace
+    h = GrabHeader(stream,1)
+    println("Displaying information for ", filename," (",NX," traces):")
+    min_h = zeros(Float32,length(key))
+    max_h = zeros(Float32,length(key))
+    mean_h = zeros(Float32,length(key))
 
-	for ikey=1:length(key)
-		min_h[ikey] = convert(Float32,getfield(h,key[ikey]))
-		max_h[ikey] = convert(Float32,getfield(h,key[ikey]))
-		mean_h[ikey] += convert(Float32,getfield(h,key[ikey]))
-	end
+    for ikey=1:length(key)
+        min_h[ikey] = convert(Float32,getfield(h,key[ikey]))
+        max_h[ikey] = convert(Float32,getfield(h,key[ikey]))
+        mean_h[ikey] += convert(Float32,getfield(h,key[ikey]))
+    end
 
-	itrace = 2
-	while itrace <= NX
-		nx = NX - itrace + 1
-		ntrace = nx > ntrace ? ntrace : nx
-		position = 4*nhead*(itrace-1)
-		seek(stream,position)
-		h1 = read!(stream,Array{Header32Bits}(undef,nhead*ntrace))
-		h1 = reshape(h1,nhead,convert(Int,ntrace))
-		for ikey = 1 : length(key)
-			keytype = eval(Meta.parse("typeof(SeisMain.InitSeisHeader().$(string(key[ikey])))"))
-			h2 = reinterpret(keytype,vec(h1[ikey,:]))
-			a = minimum(h2)
-			b = maximum(h2)
-			c = mean(h2)
-			if (a < min_h[ikey])
-				min_h[ikey] = a
-			end
-			if (b > max_h[ikey])
-				max_h[ikey] = b
-			end
-			mean_h[ikey] += c*ntrace
-		end
-		itrace += ntrace
-	end
+    itrace = 2
+    while itrace <= NX
+        nx = NX - itrace + 1
+        newNTrace = nx > newNTrace ? newNTrace : nx
+        position = 4*nhead*(itrace-1)
+        seek(stream,position)
+        h1 = read!(stream,Array{Header32Bits}(undef,nhead*newNTrace))
+        h1 = reshape(h1,nhead,convert(Int,newNTrace))
+        for ikey = 1 : length(key)
+            keytype = eval(Meta.parse("typeof(SeisMain.InitSeisHeader().$(string(key[ikey])))"))
+            h2 = reinterpret(keytype,vec(h1[ikey,:]))
+            a = minimum(h2)
+            b = maximum(h2)
+            c = mean(h2)
+            if (a < min_h[ikey])
+                min_h[ikey] = a
+            end
+            if (b > max_h[ikey])
+                max_h[ikey] = b
+            end
+            mean_h[ikey] += c*newNTrace
+        end
+        itrace += newNTrace
+    end
 
-	for ikey=1:length(key)
-		mean_h[ikey] /= NX
-	end
-	close(stream)
-	println("       Key          Minimum          Maximum             Mean");
-	println("=============================================================")
-	for ikey=1:length(key)
-		@printf("%10s      %11.3f      %11.3f      %11.3f\n",string(key[ikey]),min_h[ikey],max_h[ikey],mean_h[ikey])
-	end
+    for ikey=1:length(key)
+        mean_h[ikey] /= NX
+    end
+    close(stream)
+    println("       Key          Minimum          Maximum             Mean");
+    println("=============================================================")
+    for ikey=1:length(key)
+        @printf("%10s      %11.3f      %11.3f      %11.3f\n",string(key[ikey]),min_h[ikey],max_h[ikey],mean_h[ikey])
+    end
 
+    df = DataFrame()
+
+    df.Keys = key |> collect
+    df.Minimum = min_h
+    df.Mean = mean_h
+    df.Maximum = max_h
+
+    return df
 end

src/SeisMain.jl

@@ -2,6 +2,7 @@ module SeisMain
     using Printf
     using Statistics
     using Distributed
+    using DataFrames
     include("ReadWrite/ReadWrite.jl")
     include("Utils/Utils.jl")
 end